EP 3844449 A4 20220427 - HYBRID THERMOSIPHON SYSTEM
Title (en)
HYBRID THERMOSIPHON SYSTEM
Title (de)
HYBRIDES THERMOSIPHONSYSTEM
Title (fr)
SYSTÈME DE THERMOSIPHON HYBRIDE
Publication
Application
Priority
- US 201862723400 P 20180827
- US 2019048382 W 20190827
Abstract (en)
[origin: US2020064028A1] The disclosure relates to a thermosiphon system operable to consistently maintain the permafrost and active frost layer in a frozen condition to adequately support buildings and other structures. During cooler seasons, the thermosiphon system uses a passive refrigeration cycle to efficiently maintain the frozen layers using the cold air. When the air temperature rises during the warmer months, the system transitions into an active refrigeration mode that uses a refrigeration system to minimize thawing or degradation of the permafrost and active frost layers.
IPC 8 full level
F28D 15/02 (2006.01); F25B 1/00 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP US)
F24S 10/95 (2018.04 - US); F24S 90/10 (2018.04 - US); F24T 10/10 (2018.04 - US); F28D 1/0226 (2013.01 - EP); F28D 15/0266 (2013.01 - US); F24T 10/10 (2018.04 - EP); F24T 10/40 (2018.04 - EP); F24T 50/00 (2018.04 - EP); F24T 2010/53 (2018.04 - US); F28D 2020/0069 (2013.01 - EP); Y02B 10/20 (2013.01 - EP); Y02E 10/10 (2013.01 - EP); Y02E 10/44 (2013.01 - EP)
Citation (search report)
- [X] US 5339893 A 19940823 - HAYNES FRANCIS D [US], et al
- [A] RU 2655857 C1 20180529 - RILO ILYA [RU]
- [A] RU 2556591 C1 20150710 - AKTSIONERNAJA KOMPANIJA TRANSPORTU NEFTI TRANSNEFT OAO AK TRANSNEFT AOOT [RU], et al
- [A] US 5190098 A 19930302 - LONG ERWIN L [US]
- See references of WO 2020046969A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 11408645 B2 20220809; US 2020064028 A1 20200227; CA 3110361 A1 20200305; CA 3110361 C 20231003; EP 3844449 A1 20210707; EP 3844449 A4 20220427; WO 2020046969 A1 20200305
DOCDB simple family (application)
US 201916553031 A 20190827; CA 3110361 A 20190827; EP 19854286 A 20190827; US 2019048382 W 20190827